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For the Inventor, By the Inventor

Osaka, Japan

Olfa Corporation

Calculating rank
USPTO Granted Patents = 28

% Expired Patents = 7.1



Trademarks = 5

Forward Citations = 320

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5 inventors (with patents filed for the assignee):

goldMedal Shoji Okada (14 out of 21 patents)

silverMedal Yosuke Takashima (7 out of 7 patents)

bronzeMedal Toshiyuki Watanabe (6 out of 21 patents)

4.  Minoru Masuda (3 out of 76 patents)

5.  Hiroshi Okada (1 out of 1 patent)


Core Competencies:
Safety Cutter Knife
Replacement Blade
Rotary Cutter
Utility Knife
Auto-Locking Knife
Cutter Knife Holder
Translucent Ruler
Grip-Type Lockable Knife
Compass-Cutter
Snap-Off Blade
Rotary Cutting Mat
Cutter Knives

28 patents:

1. 12427680 - Safety cutter knife (2025-09-30),
2. D1028668 - Replacement blade for a cutter knife (2024-05-28),
3. D964137 - Cutter knife (2022-09-20),
4. D899886 - Cutter knife (2020-10-27),
5. D847605 - Cutter knife (2019-05-07),
6. 10279489 - Full metal cutter knife (2019-05-07),
7. D790313 - Cutter knife (2017-06-27),
8. D717150 - Cutter knife (2014-11-11),
9. 8727195 - Blade snap-off holder (2014-05-20),
10. D691868 - Rotary cutter (2013-10-22),
11. D656381 - Cutter knife (2012-03-27),
12. 7942395 - Rotary cutting mat (2011-05-17),
13. 7765701 - Safety cutter knife (2010-08-03),
14. D606837 - Cutter knife (2009-12-29),
15. 7540094 - Cutter knives for slash-quilts (2009-06-02),
Company Overview
Olfa Corporation, headquartered in Osaka, Japan, is renowned for its innovative cutting tools and blades, primarily serving the crafting, industrial, and packaging sectors. The company specializes in precision-engineered products that enhance efficiency and safety in various applications. With a strong emphasis on research and development, Olfa continually advances its technology to meet the evolving needs of its global customer base, ensuring high-quality solutions that cater to both professional and consumer markets.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Olfa Corporation USPTO Patent Assignee Logo
28 Patents

#258 in Osaka

#2,417 in Japan

#23,317 in the World

Osaka, JP
Osaka, Japan

Olfa Corporation

Forward Citations = 320

5 inventors:

goldMedal Shoji Okada (14 out of 21 patents)

silverMedal Yosuke Takashima (7 out of 7 patents)

bronzeMedal Toshiyuki Watanabe (6 out of 21 patents)

4.  Minoru Masuda (3 out of 76 patents)

5.  Hiroshi Okada (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Olfa Corporation. Retrieved from https://idiyas.com/company/olfa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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